The Mahabharata/Book 1: Adi Parva…
“ The wise say that he is a true charioteer who without slackening holdeth tightly the reins of his horses. He, therefore, is the true man that subdueth, without indulging in his rising wrath. Know thou, O Devayani, that by him is everything conquered, who calmly subdueth his rising anger. ”
